i've got one of the steelheads and a chameleon. both have their good points. the steelhead can take a beating but it is heavier by a few pounds than the chameleon. if that matters to you. on the azonic you also have to take the rear disc off if you want to remove the wheel, unless you run v's. are you looking to get new or used? the azonic is definatley cheaper like around 200 while the chameleon is about 450 - 500 new. i have also heard from a few people that the chameleons crack near the headtube and to keep a check on it.